Internal Medicine Residency

Program Leadership

Kevin S. Fleming, M.D. – Program Director (Internal Medicine)

Dr. Fleming was introduced to healthcare at a young age, having come from a family of physicians. He found Internal Medicine to be intellectually stimulating and enjoyed the idea of taking care of a patient from the start to the finish of any medical issue they may be experiencing.

My Biography

Alyssa Figueroa, D.O. – Associate Program Director (Internal Medicine)

Dr. Figueroa, D.O. is an internal medicine hospitalist at Northwest Medical Center and Core Faculty for the Internal Medicine residency program. She attended medical school at Lake Erie College of Osteopathic Medicine after receiving a Bachelor of Science in Biology with a minor in Chemistry from Houghton College.

My Biography

Michael J. DeLong, M.D. – Associate Program Director (Nephrology)

Dr. DeLong is a Nephrology Specialist in Tucson, AZ with more than 20 years of experience in the medical field. Dr. DeLong is experienced in hypertension, general nephrology and chronic kidney disease.

My Biography

Lyndsey Kramp, M.D. – Program Director (Family Medicine)

As an Assistant Professor and Core Faculty for the UAMS Family Medicine Residency Program for 9 years, she directed and mentored many clinical quality improvement projects, national academic poster presentations and was honored as Teacher of the Year (2019). She moved to Tucson in 2022 as the founding Program Director of the Family Medicine Residency Program at Northwest Healthcare, Tucson. Dr. Kramp is board certified by the American Board of Family Medicine and Chair of the Graduate Education Leadership Committee at Northwest Healthcare.

My Biography

Matthew Vargas, D.O. – Associate Program Director (Family Medicine)

Dr. Vargas completed medical school at the Rowan-Virtua School of Osteopathic Medicine in Stratford, NJ, and his Family Medicine residency with University of California, Davis at Travis Air Force Base, and in affiliation with the USAF School of Aerospace Medicine. He is board certified by the American Board of Family Medicine.

My Biography

Renae L. Trapp, C-TAGME – Program Coordinator

Renae is originally from the Detroit Metropolitan area, where she was the owner and directress of a Montessori infant and toddler childcare for more than a decade. She also had a ceramic studio for quite some time and, in fact, her undergraduate degree from the University of Michigan is in Fine Art.

My Biography

Ashini P. Shah, M.D. – Core Faculty (Internal Medicine & Geriatrics)

Dr. Ashini Shah is a geriatrician in Tucson, Arizona and is affiliated with multiple hospitals in the area, including Northwest Medical Center-Tucson. She received her medical degree from N.H.L Municipal Medical College and has been in practice for more than 32 years.

My Biography

Elias S. Kakish, M.D. – Core Faculty (Pulmonary & Critical Care)

Dr. Kakish had a passion to help people since he was a child – and he loves the satisfaction that comes with diagnosing and treating the variety of lung and sleep disorders that detract from so many people’s quality of life. It is important to him to invest time in explaining things to each patient. When he reviews lung images with someone, or shows them the results of their sleep study, they can see what the problem is with their own eyes. This builds their confidence and trust in Dr. Kakish as we work together on a treatment plan.

My Biography

Nicola Finley, M.D. – Core Faculty (Internal Medicine & Integrative Medicine)

Dr. Finley is an internal medicine and fellowship-trained integrative medicine physician who has beenpracticing medicine in Tucson for over 20 years. She began her career delivering primary care to medically underserved communities in a clinic and hospital setting. She transitioned into practicing integrative medicine at a wellness resort with a holistic approach to caring for patients. Now as part of the Northwest Healthcare residency program, she focuses on preventive and lifestyle approaches in ambulatory medicine as part of patient-centered care.

My Biography

Jonny Neilson, M.D. – Core Faculty (Family Medicine, Pediatrics)

Dr. Neilson completed medical school at the University of Alabama School of Medicine in Birmingham and his Pediatrics Residency at the University of Arizona – Tucson. He is board certified by the American Board of Pediatrics. He fell in love with the desert beauty of Tucson.

My Biography

Anthony DeMarco, M.D. – Core Faculty (Family Medicine)

Dr. DeMarco completed medical school at the University of Cincinnati College of Medicine in Ohio and continued on with his residency at the Ohio State University. He is board certified by the American Board of Family Medicine.

My Biography

Shannon Thorn, M.D. – Core Faculty (Infectious Disease)


Landon Casaus, D.O. – Director of Hospitalist services throughout the Tucson Market
Teaching Faculty

Hoang M. Thai, M.D. – Cardiology
Teaching Faculty

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